Metallic packing.



No. 808,082. PATENTED DEC. 26, 1905.

' E. J. FULLER.

METALLIC PACKING.

APPLICATION FILED DEO\17,1904

FIG-3.

I/V/TNESSES: E INV NTOR. WM W A TTORNEY.

the packing-rings.

UNITED STATES PATENT OFFICE.

METALLIC PACKING- Specification of Letters Patent.

Patented Dec. 26, 1905.

Application filed December 17, 1904. Serial No. 237,279.

To aZZ whom it may concern:

Be it known that LEDWARD J. FULLER,a citizen of the United States, residing at Elyria, in the county of Lorain and State of Ohio, have invented certain new and useful Improvements in Metallic Packing; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to packing for steampistons and the like, and more particularly to that form of packing wherein metal is wholly employed; and my invention consists of certain novel features of construction and combination, the preferred form whereof will be hereinafter clearly set forth, and pointed out in the claims.

The prime object of my invention, amongothers, is to provide a reliably-efiicient form of metallic packing whereby the escape of steam will be absolutely impossible and the parts whereof may be very cheaply and expeditiously manufactured and each readily assembled in its respective operative position.

Other objects and advantages will be hereinafter made clearly apparent, reference being had to the accompanying drawings, which are considered a part of this application, and in which Figure 1 is a sectional view of a stufiingbox provided with my improved packing, showing the cage broken away to clearly set forth the internal parts of the packing. Fig. 2 is a perspective view of the two parts of the cage, showing the arrangement of the centering-rings. Fig. 3 is a side elevation of one of Fig. 4 is a detail view of one of the centering-rings.

Any suitable stufling-box may be provided with my improved form of packing; but I have shown one form in the drawings which very effectively performs the necessary functions, and in such embodiment 1 represents that portion thereof which is secured to the cylinder and through which the piston operates freely. Fastened to this portion 1 is the closing member 2 for holding the packing in place. Within the portion 1 is the cage, composed of the separable members 3 and 4, having annular grooves 5 for the reception of the packing-rings 6 and 7. These rings 6 and 7 fit snugly in said grooves-that is, with respect to any sidewise movement thereof-and are composed of a series of portions formed by cutting the rings tangentially from the inner to the outer periphery thereof. A spring 8 is providedin a suitable groove 9 in the periphery of each of said rings for the purpose of holding the several parts together. As shown, the rings 6 and 7 are arranged in pairs in the grooves 5, and one of the rings of each pair is provided with a lug 10, engaging in a suitable opening in the other ring,- for insuring the cuts of one ring being out of alinement with respect to the cuts of the other. The member 3 of the cage is provided with suitable openings 11 for the passage of the bolts 12, which fit loosely in these openings and are adapted to project into screw-threaded openings in the other member 4 of the cage, whereby the two members thereof are held firmly together. Surrounding the openings 11 both of the members are provided with annular recesses 13, adapted to receive the centering-rings 14, which fit snugly within the recesses and insure the true perfect alinement of the cage at all times.

It will be readily understood from the foregoing construction that after the bolts 12 are drawn down tightly the centering-rings will be inclosed within the two members and wholly within the edges of the meeting faces of the members, whereby the centering devices will at all times retain the members of the cage in true perfect alinement irrespective of any loosening of the bolts caused by the jarring of the parts during operation.

The packing-rings shown in the drawipgs are provided with four tangential cuts extending from the inner to the outer periphery thereof, and it has been found in practice that four cuts rather than a less number permit the several parts of the rings to fit more closely to the rod and prevent any leakage.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a metallic packing, the combination with the packing-rings, of a cage composed of separable members, means interposed between the meeting faces of said members and wholly inclosed within the edges of said meeting faces for insuring a true and perfect alinement of said members, and means for securing said members together.

2. In a metallic packing, the combination with the packing-rings, of a cage composed of separable members, centering devices projecting into the meeting faces of said members and wholly inclosed within the edges of said faces for insuring a true and perfect alinement of said members, and means for securing the members together.

3. In a metallic packing, the combination with the packing-rings, of a cage composed of separable members, centering-rings project ing into the meeting faces of said members and Wholly inclosed within the edges of said faces for insuringa true and perfect alinement of said members, and means for securing the members together.

4. In a metallic packing, the combination with the packing-rings, of a cage composed of separable members provided Withannular recesses in their meeting faces, centering-rings adapted to engage in said recesses for insuring a true and perfect alinement of said members, and means for securing' said members together.

5. In a metallic packing, the combination with the packing-ring s, of a cage composed of separable members, suitable bolts for securing said members together, and means surrounding said bolts for insuring a true and perfect alinement of said members.

6. In a metallic packing, the combination with the packing-rings, of a cage composed of separable members, suitable bolts for securing said members together, and centeringrings surrounding said bolts for insuring a true perfect alinement of said members.

7. In a metallic packing, the combination with the packing-rings, of a cage composed of separable members provided with suitable bolt-holes and with annular recesses independent of but surrounding said holes, centering-rings arranged in said recesses for insuring a true and perfect alinement of said.

EDWARD J. FULLER.

Witnesses:

LEE STRAUB, W. H. FULLER. 

